Question

Can anyone help me with this? I'm in dire need: (its on molarity)
How many moles of each ion are present in aqueous solutions made by dissolving 10.00g of cobalt (III) chloride in enough water to make 4.35L of solution?

Answer 1

What is the most stable form of cobalt(III) chloride? Start out by writing a chemical equation to describe the reaction. Since it's an ion it will dissociate completely in water into its components. So for every mole of your product you will create several moles of product that's dissociated. For instance, 1 mol of NaCl is made by 1 mol of Na and 1 mol of Cl.

Next step is to look up the molar masses of each element to determine how much of each product you have in terms of 10g of products.